CN102442028A - 金属与树脂的复合体的制造方法 - Google Patents

金属与树脂的复合体的制造方法 Download PDF

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CN102442028A
CN102442028A CN2010105055905A CN201010505590A CN102442028A CN 102442028 A CN102442028 A CN 102442028A CN 2010105055905 A CN2010105055905 A CN 2010105055905A CN 201010505590 A CN201010505590 A CN 201010505590A CN 102442028 A CN102442028 A CN 102442028A
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resin
metalwork
metal
micropore
complex
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张新倍
陈文荣
蒋焕梧
陈正士
徐华阳
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Priority to CN2010105055905A priority Critical patent/CN102442028A/zh
Priority to US12/978,617 priority patent/US8632713B2/en
Publication of CN102442028A publication Critical patent/CN102442028A/zh
Priority to US14/097,348 priority patent/US9005735B2/en
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    • B29C2045/14327—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles anchoring by forcing the material to pass through a hole in the article
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
    • B29C2045/14877—Pretreatment of the insert, e.g. etching, cleaning preheating or precooling the insert for non-deforming purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
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    • Y10T428/00—Stock material or miscellaneous articles
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Abstract

本发明提供一种金属与树脂的复合体的制造方法，其包括如下步骤：提供一金属件；对该金属部件进行脱脂除油清洗；用聚焦离子束对金属件进行刻蚀，以在金属件表面形成纳米孔点阵；将金属件嵌入到一成型模具中，并加热金属件至100～350℃；于所述模具中注射熔融的结晶型热塑性树脂并冷却，树脂侵入金属件表面的纳米孔中与金属件结合。

Description

金属与树脂的复合体的制造方法
技术领域
本发明涉及一种金属与树脂的复合体的制造方法。
背景技术
在实际应用中，常常需要将金属和树脂进行连接形成复合体。现有的金属和树脂连接方法之一是采用粘接剂进行粘合，但通过粘接剂粘合无法制得高强度的金属和树脂复合体。
另一种连接方法是先通过化学蚀刻方法在金属件表面成孔，然后将金属件放入模具内，注射树脂与金属件结合为一体。该方法虽然可以制得较高强度的金属和树脂复合体，但需要针对不同的金属配制不同的化学蚀刻液，由于所用化学药剂都为强酸强碱，废弃的蚀刻液难以处理，不利于环保。
发明内容
有鉴于此，有必要提供一种环保的、连接强度高的金属与树脂的复合体的制造方法。
一种金属与树脂的复合体，包括金属件及与金属件结合的树脂件，该金属件表面形成有若干微孔，所述微孔的开口直径小于孔底直径，该树脂件部分侵入所述微孔而与该金属件结合。
一种金属与树脂的复合体的制造方法，其包括如下步骤：
提供一金属件；
对该金属件进行脱脂除油清洗；
用激光束烧蚀金属件表面，以在金属件表面形成若干微孔，所述微孔的开口直径小于孔底直径；
将金属件嵌入到一成型模具中，并加热金属件至100～350℃；
于所述模具中注射熔融的树脂并冷却，树脂侵入金属件表面的微孔中与金属件结合。
相较于现有技术，上述金属与树脂的复合体的制作方法藉由激光束在金属件烧蚀出由开口小底部大的锥形微孔组成的微孔点阵，注射树脂后熔融的树脂侵入到微孔中而与金属件牢牢地结合，从而增强了树脂与金属件的结合力。而且，由于该方法不涉及到使用化学药剂在金属件形成微孔，因而较为环保。
附图说明
图1为本发明较佳实施例金属与树脂的复合体的剖视示意图。
图2为本发明较佳实施例金属与树脂的复合体的制造方法中在金属件上形成微孔的原理图。
主要元件符号说明
金属与树脂的复合体    10
金属件                20
表面                  201
微孔                  22
树脂件                30
激光束                1
具体实施方式
请参阅图1，本发明较佳实施例的金属与树脂的复合体10包括金属件20及与金属件结合的树脂件30。
金属件20的表面201形成有若干微孔22，所述微孔22的开口直径d1小于孔底直径d2，其中开口直径d1大约为5～50微米，深度大约为25～300微米。金属件的材质可为铝合金、镁合金、不锈钢、铜及铜合金等。
所述树脂件30通过注射或热熔的方式部分侵入所述微孔22中与该金属件20结合。树脂件30由结晶型热塑性树脂组成，该结晶型热塑性树脂可为聚苯硫醚(PPS)与玻璃纤维的混合物、聚酰胺(PA)、聚对苯二甲酸乙二醇酯(PET)或聚对苯二甲酸丁二醇酯(PBT)。若为聚苯硫醚与玻璃纤维的混合物时，其中玻璃纤维的质量百分含量可为20～50％。
上述金属与树脂的复合体10的制造方法主要包括如下步骤：
提供经成型的金属件20。该金属件20可以通过机械加工、铸造的方式成型。
对金属件20进行脱脂除油清洗。该脱脂除油清洗主要包括将所述金属件20浸渍于含脱脂剂的水溶液中。所述脱脂剂可为市面上出售的金属常用的脱脂剂。该脱脂剂的浓度可为90～150g/L。浸渍时，保持所述脱脂剂的水溶液的温度在20～30℃之间。该浸渍的时间为1～6分钟。脱脂处理后对所述金属件20进行水洗。
请参阅图2，用激光束在金属件20的表面201烧蚀出若干微孔。该步骤具体为：首先，提供一激光打孔设备(图未示)，该激光打孔设备包括一控制器，该控制器用于控制激光束1的照射路径；设计需加工的微孔点阵图，并将该微孔点阵图输入所述激光打孔设备的控制器；然后，将激光束1的聚焦位置设置在金属件20待烧蚀的表面201上方预定距离处，在控制器控制下，激光束1按照所设计的微孔点阵图对金属件20进行烧蚀，以在金属件20表面形成所述微孔22。由于激光束1的聚焦位置设置在金属件20待烧蚀表面201上方，激光到达金属件20时又重新发散，所以形成的微孔22开口直径d1小于孔底直径d2。
将该形成有微孔的金属件嵌入到一成型模具中，并加热金属件至100-350℃。该加热的方式可为电磁感应加热。
于所述加热的模具中注射熔融的结晶型热塑性树脂，树脂侵入金属件20表面的微孔22内，冷却后，该树脂与金属件20结合于一体，即获得该金属与树脂的复合体10。
对经上述方法制得的金属与树脂的复合体10进行了抗拉强度及剪切强度测试。测试结果表明，该金属与树脂的复合体10的抗拉强度可达15MPa，剪切强度可达25MPa。且对经上述测试后的金属与树脂的复合体10在进行冷热冲击试验(48小时，-40～85℃，4小时/cycle，12cycles)后发现，该金属与树脂的复合体10的抗拉强度及剪切强度均无明显减小。
上述金属与树脂的复合体的制作方法藉由激光束在金属件烧蚀出由开口小底部大的锥形微孔组成的微孔点阵，注射树脂后熔融的树脂侵入到微孔中而与金属件牢牢地结合，从而增强了树脂与金属件的结合力。而且，由于该方法不涉及到使用化学药剂在金属件形成微孔，因而较为环保。

Claims (10)

1.一种金属与树脂的复合体，包括金属件及与金属件结合的树脂件，其特征在于：该金属件表面形成有若干微孔，所述微孔的开口直径小于孔底直径，该树脂件部分侵入所述微孔而与该金属件结合。
2.如权利要求1所述的金属与树脂的复合体，其特征在于：所述微孔开口直径为5～50微米，微孔的深度为25～300微米。
3.如权利要求1所述的金属与树脂的复合体，其特征在于：所述金属件的材质为铝合金、镁合金、不锈钢、铜及铜合金中的一种。
4.如权利要求1所述的金属与树脂的复合体，其特征在于：所述树脂件由结晶型热塑性树脂组成。
5.如权利要求4所述的金属与树脂的复合体，其特征在于：所述结晶型热塑性树脂为聚苯硫醚与玻璃纤维的混合物、聚酰胺、聚对苯二甲酸乙二醇酯及聚对苯二甲酸丁二醇酯中的一种。
6.一种金属与树脂的复合体的制造方法，其包括如下步骤：
提供一金属件；
对该金属件进行脱脂除油清洗；
用激光束烧蚀金属件表面，以在金属件表面形成若干微孔，所述微孔的开口直径小于孔底直径；
将金属件嵌入到一成型模具中，并加热金属件至100～350℃；
于所述模具中注射熔融的树脂并冷却，树脂侵入金属件表面的微孔中与金属件结合。
7.如权利要求6所述的金属与树脂的复合体的制造方法，其特征在于：所述微孔的开口直径为5～50微米，微孔的深度为25～300微米。
8.如权利要求6所述的金属与树脂的复合体的制造方法，其特征在于：所述激光束烧蚀步骤包括：提供一激光打孔设备，该激光打孔设备包括一控制器；设计需加工的微孔点阵图，并将该微孔点阵图输入所述控制器；将激光束的聚焦位置设置在该金属件的待烧蚀表面上方预定距离处，控制器控制激光束按照所述微孔点阵图对金属件进行烧蚀。
9.如权利要求6所述的金属与树脂的复合体的制造方法，其特征在于：所述金属件的材质为铝合金、镁合金、不锈钢、铜及铜合金中的一种。
10.如权利要求6所述的金属与树脂的复合体的制造方法，其特征在于：所述树脂为结晶型热塑性树脂。
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Application publication date: 20120509